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4 years ago

Function or not?please heeeeeelp

Mathematics

2 answers:

iris [78.8K]4 years ago

6 0

Answer:

Not a function

Step-by-step explanation:

Hope this helps! have a nice day! Please consider making me Brainliest!

Lynna [10]4 years ago

4 0

Answer:

not a function

Step-by-step explanation:

the vertical line test. if you can put a vertical line on the graph that goes through two points on the parrabola it is not a function

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A $1,200 computer is losing value at a rate of 22% per year; 2 years

zalisa [80]

Answer:

$730.08

Step-by-step explanation:

22% = 0.22

1 - 0.22 = 0.78

Value after 2 years

v = 1200(0.78)²

v = 730.08

$730.08

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3 years ago

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3 years ago

How do I make 2 3/4 into a decimal?

klasskru [66]

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4 years ago

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Vaselesa [24]

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3 years ago

Suppose a large shipment of laser printers contained 18% defectives. If a sample of size 340 is selected, what is the probabilit

Anestetic [448]

Answer:

The probability that the sample proportion will be greater than 13% is 0.99693.

Step-by-step explanation:

We are given that a large shipment of laser printers contained 18% defectives. A sample of size 340 is selected.

Let $\hat p$ = the sample proportion of defectives.

The z-score probability distribution for the sample proportion is given by;

Z = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n}} }$ ~ N(0,1)

where, p = population proportion of defective laser printers = 18%

n = sample size = 340

Now, the probability that the sample proportion will be greater than 13% is given by = P( $\hat p$ > 0.13)

P( $\hat p$ > 0.13) = P( $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n}} }$ > $\frac{0.13-0.18}{\sqrt{\frac{0.13(1-0.13)}{340}} }$ ) = P(Z > -2.74) = P(Z < 2.74)

= 0.99693

The above probability is calculated by looking at the value of x = 2.74 in the table which has an area of 0.99693.

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4 years ago